Mailbox for security doors or the like



FIG. 1 is a rear and top-right perspective view of a mailbox for security doors or the like showing my new design;

FIG. 2 is a front and bottom left perspective view; and

FIG. 3 is a left front perspective view thereof, the broken-line showings are environmental only and form no part of the claimed design. 

The ornamental design for a mailbox for security doors or the like, as shown and described. 